Gator Seal Underlayment
Uniformly seals to the deck and. Webapply gatorseal underlayment to the roof, starting at the eave. Its durable high strength design.
Modified asphalt reinforced with an extra heavy fiberglass mat. This product can be left exposed for up to 120 days. The first course of gatorseal underlayment should be parallel and flush to the edge of the eave.